Acoustic horn



FIG. 1 is a front and right side perspective view of an acoustic horn, embodying my new design; the front and left side perspective view being a mirror image thereto;

FIG. 2 is a back, right side perspective view thereof, wherein the back, left side elevation view is a mirror image thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a right side cross-sectional view thereof, taken along line 9-9 in FIG. 3; and,

FIG. 10 is a front side cross-sectional view thereof, taken along line 10-10 in FIG. 5.

The broken line portions show unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an acoustic horn, as shown and described. 